次生结构

风花菜根异常次生结构的解剖学观察

Anatomical observation of anomalous secondary structure in root of Rorippa islandica

具有次生结构，次生保护组织为周皮。

It had secondary structure and the secondary protective tissue was periderm .

随着主涡的生成和发展，在模型背风侧再分离区诱导出一些次生结构，tertiary涡就是其中一种。

With the generation and development of the main vortices , kinds of sub-structures are induced at the re-separation region on the leeward of the body including tertiary vortex .

茎的次生结构中的次生韧皮部的韧皮纤维发达；

Phloem fibers in stem second - ary structure were developed .

根的次生结构包括周皮和次生维管组织两部分。

The secondary structure included periderm and secondary vascular tissue .

根的初生结构和早期的次生结构都是正常的。

The primary structure and early secondary structure were normal .

这种异常的次生结构对旱生植物具有重要的生态学意义。

The anomalous secondary structure has an important ecological significance for xerophytes .

不定根为三原型，具次生结构。

The adventitious root is triarch , and has the secondary structure .

药用植物根中的异常次生结构

Anomalous Secondary Structures in the Roots of Medicinal Plants

根初生结构为二原型，次生结构中射线为异型射线。

The rays in the secondary structure are heterocellular .

结果表明，美登木根的次生结构由周皮和维管组织构成；

The secondary structure of the root consisted of periderm and vascular cylinders .

茎具有明显的次生结构。

Secondary structures in the stem are obvious .

维管形成层已经形成，但次生结构尚不发达。

Vascular cambium has formed , but the secondary structure is far from developed .

在茎的次生结构中皮层与韧皮部之间有一层扁平形细胞；

There is a layer of compressed cells in the secondary structure of stem .

根具次生结构，茎（花葶）仅有初生结构。

The root has secondary structure , but the stem only has primary structure .

本文报道了四种药用植物根的异常次生结构规律。

The present paper reports the laws of anomalous secondary structures in medicinal plant roots of 4 species .

在茎的次生结构中，挥发油则主要分布在残存的皮层薄壁组织细胞中。

In the secondary structure of stem , the essential oil was mainly distributed in remaining cortex parenchyma cell .

根的初生木质部多为二原型，少数为三原型；成熟根的结构以次生结构为主。

The primary xylem is diarch , triarch is few . Mature structure mainly depends on the secondary structure .

利用滑走切片技术和显微镜的手段观察了木兰科一年生茎的次生结构特征。

The secondary structure of annual stem of6 genera ( 12 species ) from Magnoliaceae of China is described .

长白忍冬根、茎的次生结构组成成分相似，均属散孔材。

The secondary structure of root and stem of Lonicera ruprechtiana Regel has similar characteristics , belongs to diffuse-porus wood .

由于初生结构和早期的次生结构是正常的，所以，这种异常结构可能是后起的特征。

The anomalous secondary structure of this kind may therefore be reconstructed as the primary and early secondary structures are normal .

三叶木通茎的次生结构，其横切面近似圆形，生长轮明显，散孔材。

The secondary structure of stem of A. trifoliata : the transverse section of stem is circinal , with obvious growth ring . It is diffuse-porous wood .

因此，北柴胡根的次生结构从外到内由周皮、中柱鞘薄壁细胞环和次生维管组织组成。

Therefore , the secondary structure included periderm , pericyclic parenchyma tissue and secondary vascular tissue from the outside to the inside of taproots of Bupleurum chinense DC .

根据长壁采空区及其覆岩中采动次生结构面和结构体特征，将长壁采空区覆岩结构划分为四种类型。

Based on the structure plane and block features of ruptured rock mass in and over longwall goaf , the ruptured rock mass construction are divided into four types .

栽培大豆次生结构中的次生维管射线的数目多，每一射线都由多列细胞组成，而野生大豆维管射线数目少且由一列射线细胞组成。

There were more secondary vascular rays , which consisted of multiserial cells in cultured soybean . In wild soybean there were less vessel rays , which consisted of uniseriate ray cells .

根系由不定根组成，根的初生结构木质部为2～4原型，次生结构中栓内层较厚。

Its root system is composed of adventitious roots . The primary xylem of root is 2 ~ 4 arches , and the secondary structure of root is characterized by a thicker phelloderm .

药用植物川牛膝根中异常次生结构的发育解剖学研究本文报道了药用植物牛滕根的异常次生生长。其初生结构和早期的次生结构类似于一般的草本双子叶植物根。

The anomalous secondary thickening was studied in the root of medicinal species of Achyranthes bidentata B1 . The primary and early secondary structures are similar to those of most herbs of the dicotyledons .

矿石金属矿物主要有黄铜矿、磁铁矿、闪锌矿、方铅矿等；脉石矿物主要有石榴石、透辉石、绿帘石、方解石等。矿石结构主要有粗晶结构、斑状结构、交代结构，次生结构。

Ore minerals have chalcopyrite , magnetite , sphalerite , galena ; Gangue minerals are garnet , diopside , epidote , calcite etc. The ore textures have coarse-grained texture , porphyritic texture , metasomatic texture , secondary textures .

酶解导致纤维细胞致密的次生壁结构疏松多孔，酶解由纤维表面向内层转移，单根纤维强度和成纸强度下降。

Single fiber and paper strength decrease .

类似碳酸盐岩这种含有次生孔隙结构的物质具有更为复杂的孔隙构型。

Materials having induced porosity such as the carbonate rocks have even more complex pore configurations .